package com.zut.config;

import com.zut.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;


@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    /**
    * 设置静态资源映射
    * */
    protected void addResourceHandlers(ResourceHandlerRegistry registry){

       log.info("开始静态资源映射...");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");

    }
    /**
     * 扩展消息转换器
     * */
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters)
    {
        log.info("扩展消息转换器...");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
          //设置对象转换器,底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }



}
